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How do I find out my MySQL URL, host, port and username?
I need to find my MySQL username. When I open the MySQL command line client, it only asks me for my password. I don't remember my username. And for connectivity with JDBC, I need the URL, host and port number. Where do I find all of these?
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In which case do you use the JPA @JoinTable annotation?
In which case do you use the JPA @JoinTable annotation?
5 Answers
5
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Can you find all classes in a package using reflection?
Is it possible to find all classes or interfaces in a given package? (Quickly looking at e.g. Package , it would seem like no.)
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Create a list from two object lists with linq
I have the following situation
8 Answers
8
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Change the current directory from a Bash script
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You need to convert your script to a shell function:
#!/bin/bash
#
# this script should not be run directly,
# instead you need to source it from your .bashrc,
# by adding this line:
# . ~/bin/myprog.sh
#
function myprog() {
A=$1
B=$2
echo "aaa ${A} bbb ${B} ccc"
cd /pro...
What's the difference between git reset --mixed, --soft, and --hard?
I'm looking to split a commit up and not sure which reset option to use.
14 Answers
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Subtract two variables in Bash
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You just need a little extra whitespace around the minus sign, and backticks:
COUNT=`expr $FIRSTV - $SECONDV`
Be aware of the exit status:
The exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0.
Keep this in mind when using the expression i...
How to automatically navigate to the current class in Intellij Idea Project Tool Window?
I would like to have a keyboard shortcut in IntelliJ IDEA that has the following effect: the tree in the project tool window expands to show the currently open class (or file), and this class becomes selected in the tree.
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How do I specify the exit code of a console application in .NET?
I have a trivial console application in .NET. It's just a test part of a larger application. I'd like to specify the "exit code" of my console application. How do I do this?
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What is Bit Masking?
I am fairly new to C programming, and I encountered bit masking. Can someone explain to me the general concept and function of bit masking? Examples are much appreciated.
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